Interaction of Al with O2 exposed Mo2BC

The tribological properties of short range ordered W-B-C protective coatings prepared by pulsed magnetron sputtering

“…The experimental focus in the studies of the X 2 BC materials has so far been centred on another material of this group, namely Mo 2 BC [10][11][12][13]. Crystalline Mo 2 BC coatings were prepared by DC magnetron sputtering at a temperature of ≳800°C [10].…”

Probing the potential of structured and surface functionalized tools for dry cold forging of aluminium

“…The highly reactive behaviour of aluminium is documented in several papers, e.g. by Bolvardi et al via ab initio calculations [9,10] and experimentally by Fuentes et al [11]. In this paper, another surface modification concept in order to reduce friction and wear is presented.…”

“…Contrarily, atomic scale onset of Al-adhesion was observed in interfaces of aluminium and tool coatings in theory [9] and experiment [11]. Abinitio DFT calculations suggest the adsorption energies of Al-atoms to be two orders of magnitude higher in the latter interface than for interfaces with only van-der-Waals interaction present [10]. Functionalized surfaces were investigated by X-ray photoelectron spectroscopy using a JEOL JAMP 9500F equipped with a non-monochromatic Al Kα X-ray source.…”